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A triangle has sides of length 8 cm, 10 cm and 14 cm. Work out the size of the largest angle of the triangle. Give your answer correct to 1 decimal place.

Utilising the cosine rule: c² = a² + b² - 2abcosC, substitute in the given lengths. We therefore get that 14² = 10² + 8² − 2 × 10 × 8 × cosA . Expanding this expression we then get that 196 = 164 - 160cos...

Answered by Josephine K. • Maths tutor

16788 Views

What is the difference between the House of Commons and the House of Lords?

The UK Parliament operates a two-House system. Both Houses make laws, check the work of the government and debate issues.
The Commons consists of 650 MPs (Members of Parliament) who are elected by t...

Answered by Caitlin W. • Government and Politics tutor

35434 Views

Describe the three different types of point mutation, and explain for each what the effect on the final gene product is likely to be

Base insertion/addition. This is when a base pair is added to a sequence - for example AGTCGTAGC could become AGTCGATAGC. In this situation, a frame shift occurs, and every c...

Answered by Rachel H. • Biology tutor

2910 Views

Which French politicans support the lowering of the voting age?

Currently, you have to be aged 18 or above to be able to vote in France. Dominique Bertinotti (the Family Minister) suggests having a 'pré-majorité' status where those aged 16-18 can vote in local electio...

Answered by • French tutor

5413 Views

Discuss how Maya Angelou presents the theme of freedom, or lack thereof, in her poem 'The Caged Bird'

Withing the first stanza, Angelou uses a range of dynamic verbs in reference to the free bird: 'leaps', 'dips', 'floats'. In doing do, Angelou characterises freedom as a liberty and lightness of movement....

Answered by Nema L. • English tutor

7639 Views